Event Notification Using X-Detect Header - AudioCodes Mediant 2000 User Manual

3fd61009 0e2f3cc5
(4923 30) h323-disconnect-cause = 22 (0x16)
(4923 27) h323-call-type = VOIP
(4923 26) h323-call-origin = Originate
(4923 24) h323-conf-id = 02102944 600a1899 3fd61009 0e2f3cc5
40.4

Event Notification using X-Detect Header

The device supports the sending of notifications to a remote party notifying the occurrence
(or detection) of certain events on the media stream. Event detection and notifications is
performed using the SIP X-Detect message header and only when establishing a SIP
dialog.
For supporting some events, certain device configurations need to be performed. The table
below lists the supported event types (and subtypes) and the corresponding device
configurations, if required:
Events Type
AMD
CPT
FAX
PTT
The device can detect and report the following Special Information Tones (SIT) types from
the PSTN:

SIT-NC (No Circuit found)

SIT-IC (Operator Intercept)

SIT-VC (Vacant Circuit - non-registered number)

SIT-RO (Reorder - System Busy)
There are additional three SIT tones that are detected as one of the above SIT tones:

The NC* SIT tone is detected as NC

The RO* SIT tone is detected as RO

The IO* SIT tone is detected as VC
User's Manual
Supported X-Detect Event Types
Subtype
voice EnableDSPIPMDetectors = 1
automatic
AMDTimeout = 2000 (msec)
silence
For AMD beep detection, AMDBeepDetectionMode
unknown
= 1 or 2
beep
SIT-NC SITDetectorEnable = 1
UserDefinedToneDetectorEnable = 1
SIT-IC
Notes:
SIT-VC

Ensure that the CPT file is configured with the
SIT-RO
required tone type.
Busy

On beep detection, a SIP INFO message is sent
Reorder
with type AMD/CPT and subtype beep.
Ringtone

The beep detection must be started using regular
beep
X-detect extension, with AMD or CPT request.
(IsFaxUsed ≠ 0) or (IsFaxUsed = 0, and
CED
FaxTransportMode ≠ 0)
modem VxxModemTransportType = 3
voice-start EnableDSPIPMDetectors = 1
voice-end
470
Required Configuration
Document #: LTRT-68822
Mediant 2000